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An Attack on "Quantum Secure Direct communication and Authentication With single photons"
Preprint
2016-01-09
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Abstract
In a recent article, Chang et al. proposed a quantum secure direct communication protocol using single photons (Chinese Sci Bull, 58: 4571-4576). The protocol is equipped with authentication. In this article we present a novel attack on the protocol that can determine the secret key which is already shared between Alice and Bob.